Finding the Fourth Proportional to 9,929,693.80, 14,894,540.70 and 4,890,845.80
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Solution
The fourth proportional to 9,929,693.80, 14,894,540.70 and 4,890,845.80 is: 7,336,268.70
Step by Step Solution
- Step 1: Write the proportion equation
9,929,693.80 : 14,894,540.70 = 4,890,845.80 : x - Step 2: Convert to fraction form
9,929,693.80/14,894,540.70 = 4,890,845.80/x - Step 3: Cross multiply
9,929,693.80x = 14,894,540.70 × 4,890,845.80 - Step 4: Simplify right side
9,929,693.80x = 72,846,901,825,524.05 - Step 5: Solve for x
x = 72,846,901,825,524.05/9,929,693.80 - Step 6: Final answer
x = 7,336,268.70
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.